使用pipeline_spiffs_mp3和pipeline_wav_amr_sdcard例程时喇叭会有破音的 (AUD-5550)

[zsjlovestudy]

我将这两个例程的主要部分写成了函数如下： ` void playmp3(const char *url) { audio_pipeline_handle_t pipeline; audio_element_handle_t spiffs_stream_reader, i2s_stream_writer, mp3_decoder;

// Initialize peripherals management esp_periph_config_t periph_cfg = DEFAULT_ESP_PERIPH_SET_CONFIG(); esp_periph_set_handle_t set = esp_periph_set_init(&periph_cfg);

// ESP_LOGI(TAG, "[ 1 ] Mount spiffs");

// ESP_LOGI(TAG, "[ 2 ] Start codec chip");
// audio_board_handle_t board_handle = audio_board_init();
// audio_hal_ctrl_codec(board_handle->audio_hal, AUDIO_HAL_CODEC_MODE_BOTH, AUDIO_HAL_CTRL_START);
// es8311_set_mic_gain(0x22); 
// audio_hal_set_volume(board_handle->audio_hal, g_sysCFG.voice_volume);    // Set voice volume (0-100)
// es8311_set_mic_gain(g_sysCFG.pa_gain); 



// ESP_LOGI(TAG, "[3.0] Create audio pipeline for playback");
audio_pipeline_cfg_t pipeline_cfg = DEFAULT_AUDIO_PIPELINE_CONFIG();
pipeline = audio_pipeline_init(&pipeline_cfg);
AUDIO_NULL_CHECK(TAG, pipeline, return);

// ESP_LOGI(TAG, "[3.1] Create spiffs stream to read data from sdcard");
spiffs_stream_cfg_t flash_cfg = SPIFFS_STREAM_CFG_DEFAULT();
flash_cfg.type = AUDIO_STREAM_READER;
spiffs_stream_reader = spiffs_stream_init(&flash_cfg);

// ESP_LOGI(TAG, "[3.2] Create i2s stream to write data to codec chip");

i2s_stream_cfg_t i2s_cfg = I2S_STREAM_CFG_DEFAULT();
i2s_cfg.type = AUDIO_STREAM_WRITER;
i2s_stream_writer = i2s_stream_init(&i2s_cfg);

// ESP_LOGI(TAG, "[3.3] Create mp3 decoder to decode mp3 file");
mp3_decoder_cfg_t mp3_cfg = DEFAULT_MP3_DECODER_CONFIG();
mp3_decoder = mp3_decoder_init(&mp3_cfg);

// ESP_LOGI(TAG, "[3.4] Register all elements to audio pipeline");
audio_pipeline_register(pipeline, spiffs_stream_reader, "spiffs");
audio_pipeline_register(pipeline, mp3_decoder, "mp3");
audio_pipeline_register(pipeline, i2s_stream_writer, "i2s");

// ESP_LOGI(TAG, "[3.5] Link it together [flash]-->spiffs-->mp3_decoder-->i2s_stream-->[codec_chip]");
const char *link_tag[3] = {"spiffs", "mp3", "i2s"};
audio_pipeline_link(pipeline, &link_tag[0], 3);

// ESP_LOGI(TAG, "[3.6] Set up  uri (file as spiffs, mp3 as mp3 decoder, and default output is i2s)");
audio_element_set_uri(spiffs_stream_reader, url);

// ESP_LOGI(TAG, "[ 4 ] Set up  event listener");
audio_event_iface_cfg_t evt_cfg = AUDIO_EVENT_IFACE_DEFAULT_CFG();
audio_event_iface_handle_t evt = audio_event_iface_init(&evt_cfg);

// ESP_LOGI(TAG, "[4.1] Listening event from all elements of pipeline");
audio_pipeline_set_listener(pipeline, evt);

// ESP_LOGI(TAG, "[4.2] Listening event from peripherals");
audio_event_iface_set_listener(esp_periph_set_get_event_iface(set), evt);

// ESP_LOGI(TAG, "[ 5 ] Start audio_pipeline");
audio_pipeline_run(pipeline);

// ESP_LOGI(TAG, "[ 6 ] Listen for all pipeline events");
while (1) {
    audio_event_iface_msg_t msg;
    esp_err_t ret = audio_event_iface_listen(evt, &msg, portMAX_DELAY);
    if (ret != ESP_OK) {
        ESP_LOGE(TAG, "[ * ] Event interface error : %d", ret);
        continue;
    }

    if (msg.source_type == AUDIO_ELEMENT_TYPE_ELEMENT && msg.source == (void *) mp3_decoder
        && msg.cmd == AEL_MSG_CMD_REPORT_MUSIC_INFO) {
        audio_element_info_t music_info = {0};
        audio_element_getinfo(mp3_decoder, &music_info);

        // ESP_LOGI(TAG, "[ * ] Receive music info from mp3 decoder, sample_rates=%d, bits=%d, ch=%d",
        //          music_info.sample_rates, music_info.bits, music_info.channels);

        i2s_stream_set_clk(i2s_stream_writer, music_info.sample_rates, music_info.bits, music_info.channels);
        continue;
    }

    /* Stop when the last pipeline element (i2s_stream_writer in this case) receives stop event */
    if (msg.source_type == AUDIO_ELEMENT_TYPE_ELEMENT && msg.source == (void *) i2s_stream_writer
        && msg.cmd == AEL_MSG_CMD_REPORT_STATUS
        && (((int)msg.data == AEL_STATUS_STATE_STOPPED) || ((int)msg.data == AEL_STATUS_STATE_FINISHED))) {
        // ESP_LOGW(TAG, "[ * ] Stop event received");
        break;
    }
}

// ESP_LOGI(TAG, "[ 7 ] Stop audio_pipeline");
audio_pipeline_stop(pipeline);
audio_pipeline_wait_for_stop(pipeline);
audio_pipeline_terminate(pipeline);

audio_pipeline_unregister(pipeline, spiffs_stream_reader);
audio_pipeline_unregister(pipeline, i2s_stream_writer);
audio_pipeline_unregister(pipeline, mp3_decoder);

/* Terminal the pipeline before removing the listener */
audio_pipeline_remove_listener(pipeline);

/* Stop all periph before removing the listener */
esp_periph_set_stop_all(set);
audio_event_iface_remove_listener(esp_periph_set_get_event_iface(set), evt);

/* Make sure audio_pipeline_remove_listener & audio_event_iface_remove_listener are called before destroying event_iface */
audio_event_iface_destroy(evt);

/* Release all resources */
audio_pipeline_deinit(pipeline);
audio_element_deinit(spiffs_stream_reader);
audio_element_deinit(i2s_stream_writer);
audio_element_deinit(mp3_decoder);
esp_periph_set_destroy(set);

} ` codec和spiffs我已经提前初始化和挂载，然后可以实现多次重复运行这个函数，但是每次运行的时候都会在刚开始有一个破音，不知道是哪里的原因，我已经将codec初始化在初始化时只允许一次了，但是每次调用这个函数还是有破音。

不知道有什么解决方案，或者使用方法，如果只在初始化第一次播放音频时有破音，后面播放和录音都没有声音这样还可以接受。